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ARCHIVED REPORTS_XR0008986
EnvironmentalHealth
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3500 - Local Oversight Program
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PR0545734
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ARCHIVED REPORTS_XR0008986
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Last modified
6/5/2020 1:56:41 PM
Creation date
6/5/2020 1:25:36 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0008986
RECORD_ID
PR0545734
PE
3528
FACILITY_ID
FA0010191
FACILITY_NAME
TRACY-PONTIAC-CADILLAC-GMC TRUCK
STREET_NUMBER
2450
STREET_NAME
TOSTE
STREET_TYPE
RD
City
TRACY
Zip
95376
APN
238020-06
CURRENT_STATUS
02
SITE_LOCATION
2450 TOSTE RD
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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I10 January 2001 <br /> I AGE-NC Project No 96-0254 <br /> Page 3 of 6 <br /> 2 4 COLLECTION AND ANALYSIS OF GROUND WATER SAMPLES <br /> Water samples were collected from each well using a new disposable plastic bailer Each water <br /> sample was transferred into one 1-liter amber bottle without a sample preservative and into three <br /> 40-m1 VOA vials containing 0 5 ml 18%HCL as a sample preservative After collection, the samples <br /> were labeled and placed in a chilled container for transportation under chain-of custody to <br /> McCampbell Analytical, Inc (MAI), a California Department of Health Services (DHS)-certified <br /> analytical laboratory in Pacheco, California The ground water samples were analyzed for <br /> • Total petroleum hydrocarbons quantified as gasoline and as diesel (TPH-g and TPH-d) In <br /> accordance with EPA Method 8015 Modified <br /> I • Volatile aromatic compounds - benzene, toluene, ethylbenzene and total xylenes (BTEX) in <br /> accordance with EPA Method 8020 <br />' • Fuel oxygenates, including, di-isopropyl. ether (DIPE), ethyl tertiary butyl ether (ETBE), <br /> methyl tertiary butyl ether (MTBE), tertiary amyl methyl ether (TAME) and tertiary butyl <br /> alcohol (TBA) in accordance with EPA Method 8260 Modified <br /> 3.0. FINDINGS <br /> Aquifer characteristics were calculated from the pumping/drawdown data collected on 28 August <br /> 2000 Ground water elevation, flow direction and gradient were determined from field data collected <br /> on 17 October 2000, the contaminant impact to ground water was assessed from the laboratory data <br /> 3 1 AQUIFER PROPERTIES <br /> The pumping rate was calculated to be approximately 1 0 gallons per minute (gpm) during the 28 <br /> August 2000 test A maximum drawdown of approximately 2 89 feet was observed In MW-1B after <br /> 330 minutes of pumping A maximum drawdown of approximately 0 15 feet was observed in <br /> MW-IA after 264 minutes of pumping The transmissivlties for wells MW-1A and MW-1B were <br /> calculated to be 293 gal/day-ft and 6,769 gal/day-ft, respectively The storativity for MW-1A was <br /> calculated to be 0 78 (unitless) <br />' A radius of influence could not be determined for thisp m p utest due to the lack of drawdown <br /> observed in the surrounding wells <br /> I <br /> i <br /> Advanced GcoEnvironmental Inc <br /> I <br />
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